Plasma and Fusion Research

Volume 6, 2405046 (2011)

Regular Articles

Feasibility of Reduced Tritium Circulation in the Heliotron Reactor by Enhancing Fusion Reactivity Using ICRF
Nagato YANAGI1), Oleg A. SHYSHKIN2), Takuya GOTO1), Hiroshi KASAHARA1), Junichi MIYAZAWA1) and Akio SAGARA1)
1)
National Institute for Fusion Science, 322-6 Oroshi-cho, Toki, Gifu 509-5292, Japan
2)
Kharkiv “V.N. Karazin” National University, Svobody sq. 4, 61077, Kharkiv, Ukraine
(Received 24 December 2010 / Accepted 25 March 2011 / Published 1 July 2011)

Abstract

A scheme for reducing the tritium fraction in DT fusion reactors is investigated by means of enhancing the fusion reactivity using high-power ICRF heating in heliotron reactors. We assume a situation that the density fraction of tritons is less than 10%, and the minority tritons are accelerated by ICRF waves. We then analyze the increase of fusion reactivity by assuming an effective temperature of high-energy tritons and examine the possibility of realizing a fusion reactor with this concept. The required ICRF power and the generated fusion power are also estimated.

Keywords

heliotron, FFHR, D-T reaction, ICRF, fusion reactivity enhancement, high-energy tail

DOI: 10.1585/pfr.6.2405046

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This paper may be cited as follows:

Nagato YANAGI, Oleg A. SHYSHKIN, Takuya GOTO, Hiroshi KASAHARA, Junichi MIYAZAWA and Akio SAGARA, Plasma Fusion Res. 6, 2405046 (2011).